CN201057178Y - Pneumatic sampling pump - Google Patents
Pneumatic sampling pump Download PDFInfo
- Publication number
- CN201057178Y CN201057178Y CNU2007201243843U CN200720124384U CN201057178Y CN 201057178 Y CN201057178 Y CN 201057178Y CN U2007201243843 U CNU2007201243843 U CN U2007201243843U CN 200720124384 U CN200720124384 U CN 200720124384U CN 201057178 Y CN201057178 Y CN 201057178Y
- Authority
- CN
- China
- Prior art keywords
- sample gas
- pump
- nozzle
- suction chamber
- suction cavity
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 238000005070 sampling Methods 0.000 title claims abstract description 15
- 238000000034 method Methods 0.000 abstract description 9
- 238000005259 measurement Methods 0.000 abstract description 2
- 239000007921 spray Substances 0.000 abstract 3
- 239000000523 sample Substances 0.000 description 22
- 238000012545 processing Methods 0.000 description 5
- 238000001035 drying Methods 0.000 description 4
- 238000001914 filtration Methods 0.000 description 4
- 238000004781 supercooling Methods 0.000 description 4
- 238000013461 design Methods 0.000 description 2
- 238000009792 diffusion process Methods 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 238000010408 sweeping Methods 0.000 description 2
- 239000008280 blood Substances 0.000 description 1
- 210000004369 blood Anatomy 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000011259 mixed solution Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Sampling And Sample Adjustment (AREA)
Abstract
The utility model relates to a sampling device used for sample gas treatment system, in particular to an aerodynamic sampling pump, which comprises a pump body, a sample gas inlet, a sample gas outlet, a throat, spray components, and a nozzle. The pump body has a suction cavity; a sample gas inlet and a sample gas outlet are respectively arranged on the pump side wall and bottom and are communicated with the suction cavity; a throat is arranged between the suction cavity and the gas outlet; the top of the pump is provided with spray components, the nozzle is positioned in the suction cavity of the pump body, and the spray components is provided with gas inlet that is communicated with the suction cavity through the nozzle. The middle radius of the throat is small, and two-side radiuses are gradually broadened outwards showing an inverse taper. The utility model has the advantages of simple structure, low cost, long service life, needing no electric drive and being capable of automatic measurement and analysis sampling gas through an analyzer; moreover, the process produces no vibration, wear and noise, is stable and reliable and is of intrinsically safe explosion-proof.
Description
Technical field
The utility model relates to the sampling apparatus in a kind of sample gas processing system, particularly a kind of pneumatic sampling pump.
Background technique
Sampling pump is the core component of negative pressure and micro positive pressure class sample gas processing system, carries sample gas important as the human heart pumping blood to process analyzer.
Still there is not at present pneumatic automatic sampling pump, slightly similarly a kind of is " steam sampling probe ", it can regard in itself with steam to be the sampling pump of driving force as, be used in the sampling location of the prime of sample gas processing system, the support of the parts such as wanting high-power water cooler, moisture trap, the discharging of condensation mixed solution of still needing.Common SO in the sample gas
2, CO
2, O
2Deng composition all power etc. ground is not water-soluble, can reduce accuracy in detection.This device exists sample gas processing system and constitutes shortcomings such as complicated, that volume is big, maintenance is bigger.
Summary of the invention
The purpose of this utility model just provides long pneumatic sampling pump of a kind of simple in structure, with low cost and life-span, and it can be input to ANALYZER with sample gas automatically, and is stable and reliable for performance.
The purpose of this utility model is to realize by such technological scheme, and it includes the pump housing of band suction chamber, and pump housing sidewall and bottom are respectively arranged with sample gas inlet and the relief opening that is connected with suction chamber, are provided with trunnion between described suction chamber and the relief opening; The top of the pump housing is provided with the jet blower assembly, and the nozzle on the described jet blower assembly is positioned at the suction chamber of the pump housing, and the jet blower assembly is provided with suction port, and this suction port is connected with each other logical by nozzle and suction chamber.Described trunnion middle part radius is little, and the two end part radius outwards is the gradually inverted cone of wide extension.
At first the utility model is contained in after the ANALYZER, the inlet end of described ANALYZER is connected with sample gas source of the gas after supercooling, filtration and drying process, and its outlet side is connected with sample gas inlet of the present utility model; And suction port of the present utility model is connected with compressed air gas source.
The utility model is like this work: pressurized air enters and goes into suction chamber through nozzle ejection from sample gas inlet, spurts into pressurized air in the suction chamber because of sweeping along phenomenon, makes trunnion be the selfsealings state; Along with increasing of the air quantity that enters, the air in the suction chamber is discharged by relief opening through trunnion.Pressurized air experience in this process: reduce supercharging at the nozzle place because of volume, significantly reduce because of volume increases pressure suddenly after spurting into suction chamber, again through the trunnion diffusion.The flow velocity of air and the variation of pressure form a negative pressuren zone in suction chamber, i.e. Venturi principle so just can not adopt electric power source and will be through the sample air-flow after supercooling, filtration and the drying process through the process ANALYZER, and discharge through relief opening.
Owing to adopted technique scheme, the utlity model has advantage simple in structure, with low cost and that the life-span is long, it need not electric drive power, can be automatically with sample air-flow instrument Measurement and analysis by analysis; And in this process, friction, nothing wearing and tearing, noise free, stable and reliable for performance, also have the advantage of intrinsic safe explosion-proof.
Description of drawings
Description of drawings of the present utility model is as follows:
Fig. 1 is a structural representation of the present utility model;
Among the figure: 1. suction chamber; 2. the pump housing; 3. sample gas enters the mouth; 4. relief opening; 5. trunnion; 6. nozzle; 7. suction port.
Embodiment
The utility model is described in further detail below in conjunction with drawings and Examples:
Referring to accompanying drawing 1, the utility model includes the pump housing 2 of band suction chamber 1, and the pump housing 2 sidewalls and bottom are respectively arranged with sample gas inlet 3 and the relief opening 4 that is connected with suction chamber 1, are provided with trunnion 5 between described suction chamber 1 and the relief opening 4; The top of the pump housing 2 is provided with jet blower assembly 5, and the nozzle 6 on the described jet blower assembly 5 is positioned at the suction chamber 1 of the pump housing 2, and jet blower assembly 5 is provided with suction port 7, and this suction port 7 is connected with each other logical by nozzle 6 and suction chamber 1.Described trunnion 5 middle part radiuses are little, and the two end part radius outwards is the gradually inverted cone of wide extension.In actual design, nozzle interior air flue diameter is less, and the volume of suction chamber is relatively large.
The utility model is contained in after the ANALYZER, and the inlet end of described ANALYZER is connected with sample gas source of the gas after supercooling, filtration and drying process, and its outlet side is connected with sample gas inlet 3 of the present utility model; And suction port 7 of the present utility model is connected with compressed air gas source.
Now 1 further specify working principle of the present utility model in conjunction with the accompanying drawings: pressurized air enters and spurts into suction chamber 1 through nozzle 6 from sample gas inlet 3, flows into pressurized air in the suction chamber 1 because of sweeping along phenomenon, makes trunnion 5 be the selfsealings state; Along with increasing of the air quantity that enters, the air in the suction chamber 1 is discharged by relief opening through trunnion 5.Pressurized air experience in this process: 6 places reduce supercharging because of volume at nozzle, spurting into suction chamber 1 back significantly reduces because of volume increases pressure suddenly, again through trunnion 5 diffusions, the flow velocity of air and the variation of pressure form a negative pressuren zone in suction chamber 1, it is Venturi principle, so just electric power source can not adopted and will be, and the sample gas after will analyzing is discharged from relief opening 4 through the sample air-flow instrument check and analysis by analysis after supercooling, filtration and the drying process.
The utility model selects pressurized air as power source, uses after process analyzer, and be final stage position at sample gas processing system, the discharging of mixed gas need not the support of appurtenances.Have simplicity of design, use overall merits such as convenience, friction, reliability height and intrinsic safe explosion-proof.
Claims (2)
1. pneumatic sampling pump, it is characterized in that: the pump housing (2) that comprises band suction chamber (1), the pump housing (2) sidewall and bottom are respectively arranged with sample gas inlet (3) and the relief opening (4) that is connected with suction chamber (1), are provided with trunnion (5) between described suction chamber (1) and the relief opening (4); The top of the pump housing (2) is provided with jet blower assembly (5), nozzle (6) on the described jet blower assembly (5) is positioned at the suction chamber (1) of the pump housing (2), jet blower assembly (5) is provided with suction port (7), and this suction port (7) is communicated with suction chamber (1) by nozzle (6).
2. pneumatic sampling pump according to claim 1 is characterized in that: described trunnion (5) middle part radius is little, and the two end part radius outwards is the gradually inverted cone of wide extension.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201243843U CN201057178Y (en) | 2007-05-31 | 2007-05-31 | Pneumatic sampling pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201243843U CN201057178Y (en) | 2007-05-31 | 2007-05-31 | Pneumatic sampling pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201057178Y true CN201057178Y (en) | 2008-05-07 |
Family
ID=39426020
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007201243843U Expired - Fee Related CN201057178Y (en) | 2007-05-31 | 2007-05-31 | Pneumatic sampling pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201057178Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103487288A (en) * | 2013-10-16 | 2014-01-01 | 上海交通大学 | Pumping type organism sampler |
| CN103558061A (en) * | 2013-10-30 | 2014-02-05 | 石家庄禾柏生物技术股份有限公司 | Sampling head capable of sampling rapidly |
| CN103883569A (en) * | 2014-03-11 | 2014-06-25 | 江苏大学 | Jet nozzle for self-priming pump |
| CN104976164A (en) * | 2015-07-09 | 2015-10-14 | 重庆凌卡分析仪器有限公司 | Anti-blocking pneumatic sampling pump |
| CN112879795A (en) * | 2019-11-29 | 2021-06-01 | 南京扬子石油化工设计工程有限责任公司 | Low-temperature full-capacity tank with low-liquid-level material extraction device |
-
2007
- 2007-05-31 CN CNU2007201243843U patent/CN201057178Y/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103487288A (en) * | 2013-10-16 | 2014-01-01 | 上海交通大学 | Pumping type organism sampler |
| CN103558061A (en) * | 2013-10-30 | 2014-02-05 | 石家庄禾柏生物技术股份有限公司 | Sampling head capable of sampling rapidly |
| CN103558061B (en) * | 2013-10-30 | 2016-09-28 | 石家庄禾柏生物技术股份有限公司 | A kind of sampling head of fast sampling |
| CN103883569A (en) * | 2014-03-11 | 2014-06-25 | 江苏大学 | Jet nozzle for self-priming pump |
| CN103883569B (en) * | 2014-03-11 | 2016-04-06 | 江苏大学 | A kind of jet nozzle on self-priming pump |
| CN104976164A (en) * | 2015-07-09 | 2015-10-14 | 重庆凌卡分析仪器有限公司 | Anti-blocking pneumatic sampling pump |
| CN112879795A (en) * | 2019-11-29 | 2021-06-01 | 南京扬子石油化工设计工程有限责任公司 | Low-temperature full-capacity tank with low-liquid-level material extraction device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080507 Termination date: 20110531 |